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pN. EVANS. DEVICE FOR OPERATING ELEVATOR HAND ROPES.

No. 379,381. Patented Mar. 13, 1888.

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NITED STATES PATENT OFFICE.

QUIMBY N. EVANS, OF BROOKLYN, NEW YORK.

DEVICE FOR OPERATING ELEVA TO R HAND-ROPES.

SPECIFICATION forming part of Letters Patent No. 379,381, dated March 13, 1888.

Application tiled October 15, 1886.

To all whom, it may concern.-

Be it known that I, QUIMBY N. Evans, of Brooklyn, county of Kings, State of New York, have invented an Improvement in a Device for Operating the Hand-Ropes for Elevators, of which the following description, in connection with the accompanying drawings, is a specification.

My invention relates to that class of elevators having a shifting rope passing vertically through or adjacent to the car and connected to the actuating device of the motor, by the manipulation of which the earis operated; and it has for its object to provide a mechanical shittingrope-gripping device attached to the car and controlled by the operator within the car, whereby the car may be started, stopped, and its speed varied as desired withoutimparting undue strains to the hoisting-cables and elevator-motor or sudden shocks to the car.

My invention is particularly adapted 'to be applied to elevators in which the shifting-rope extends down the clevators'haft or well in two parts connected at t heir lower ends to the actuating device of the motor, and for convenience of description I shall here adhere to the terms generally used in designating the two ropes or two parts of the shiftiug-ropeviz., front rope, or that part of the rope which when pulled down causes the car to ascend, and back rope, or the other part of the same.

Theinvention consists of a shifting-rope controller composed of a frictionsheave on the outside of the car, located between the two ropes, and provided with ahandle within reach of the operator in the car, gripping pulleys held in sliding frames diametrically arranged in relation to the sheave, and connecting devices between the frames of the gripping-pulleys and the handle.

Normally the gripping devices of the shifting-rope controller are entirely free from the shifting-ropes when the car is starting or moving, and they are brought into action by the manipulation of the handle to grip and move the back rope to cause the car to start, to grip the front rope to stop the car, and to grip either of the ropes to vary the speed of the car, ac cording to the direction of travel.

In the accompanying drawings, forming part of this specification, Figure 1 is a horizontal Serial No. 216,365. (No model.)

4 as consisting of one piece of rope passing over the pulley S at the top of the elevatorveh and connected at its ends to the pulley T ofthe motor-controlling device at the bottom ofthe well.

R is the front rope, and O the back rope, both of which lie in close proximity to the car M, at the outside thereof, and between these ropes, held in a bearing, F, on the side of the car M, is the friction-sheave A. The hub G of this sheave A is hollow and extends within theinterior of the car, and is there provided with the arm L. Through this arm L passes the rod E, provided at its upper exposed end with the handle D and at its lower end, within the hub G, with the small drum H, passingaround which, with their ends secured thereto, are the two ropes I and J. These ropes I and J pass through an eye having a rounded edge in the center of the friction-sheave A, and are connected, respectively, to the small frames N and N, which arefitted to slide in the guides P and P, secured to the sides of the elevator on 0p posite sides of the sheave A. Small grippingpulleys B and C are carried on shafts in the frames N and N, respectively, and between these pulleys and the sheave A theropes R and 0 pass.

The frames N and N are drawn back by the springs K and K, so that normally the pulleys Band C areheld away from the ropes R and O.

The operation of the device is as follows: Assume that the car M is stationary and it is required to cause it to ascend. The arm L is, by means of the handle D, moved overinto the position Y. (Shown by dotted lines in Fig. 2.) The handle D is now rotated, so as to wind up the rope J on the drum H,thereby drawing the pulley 0 toward the sheave A and causing the rope O to be firmly gripped between the pulley O and thesheave A. The arm L being now moved quickly into the position Z, the sheave A is thus partly rotated, carries the ropeO upwardly, as indicated by the arrow, and actuates the device T to start the motor, but not under full headway. The operator now, .by

' holding the handlein this position, causes the car to carry the rope up with it, and when the car has acquired the desired speed the rope O is released by simply turning thehandleinto the central position, as shown at Figs. 1. 2, and 3. To stop the car, the operator holds the handle in its central position and rotates it, so as to shorten the rope 1, thereby causing the rope R to be gripped between thesheave Aand pulley B. The upward movement of the car then actuates the device T to shut off the power, which may be done in as gradual a manner as desired by regulating the forceapplied to draw the pulley 13 toward the sheave A. To cause the car to descend and to stop its downward movement, the handle D is actuated in directions reverse to those just described.

This device provides the operator with a means by which he has perfect control of the elevator to start and stop it gently without shock, to regulate the speed, and to vary the work done by the motor in accordance with the load carried.

Having now described my invention,what I claim, and desire to secure by Letters Patent, 1s

1. In a gripping device for actuating the shifting-ropes of elevator-cars, in combination,

attached to the friction-sheave, so as to rotate it, but free to be turned on its own axis independently thereof, and connected to the gripping-pulleys, so as to cause them to separately move toward the friction-sheave and press the respective parts of the shifting-rope into contact with the friction-sheave, whereby the parts of the shifting-rope are moved when the friction-sheave is rotated by the handle.

2. In a gripping device for actuating the shifting-ropes of elevator-cars, in combination, a frictionsheave having a hollow hub fitted in a bearing on the side of the car. a handle attached thereto inside the ear and provided with a drum in the hollow hub of the sheave, sliding frames fitted on the side of the car, gripping-pulleys fitted to rotate in the sliding frames, between which and thei'riction-sheave the parts of the shifting-rope pass, springs attached to the frames to draw the pulleys away from the sheave,and ropes conncctingthe drum -onthe handle to the frames.

QUIMBY N. EVANS. Vitnesses:

F. W. HANAFORD, THOMAS F. DIAGNER. 

